<form>
  <div class="modal-header">
    <a href="#" class="close" data-dismiss="modal" aria-hidden="true">&times;</a>
    <h3>Change owner</h3>
  </div>
  <div class="modal-body">
    <input type="text" name="user_name" placeholder="Username" required />
  </div>
  <div class="modal-footer">
    <div class="sync-status"/>
    <button type="button" class="btn" data-dismiss="modal" data-loading-text="Cancel">Cancel</button>
    <button type="submit" class="btn btn-primary" data-loading-text="<i class='fa fa-spinner fa-spin'></i> Saving&hellip;">Save changes</button>
  </div>
</form>
